Decibel has an intentionally minimal user interface designed to be instantly intuitive and non-intrusive:

For audiophile users desiring more control over their audio, Decibel can take exclusive control of the output device (using hog mode) and send audio in the device's native format. Additionally, Decibel can automatically adjust the output device's sample rate to that of the playing track, preventing audio quality degradation associated with software sample rate conversion.